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In the adjacent figure if x:y=11:19 AD||BE find LDCE

Posted by Nitesh Kumar 8 years, 2 months ago

1 answers

In the adjacent figure x:y=11:19.if AD//BE find the angle DCE

The ques should be AB⊥BD

Solving them
let x and y be 11a and 19a
then in ΔABD
11a+19a+90°=180° (angle sum property)
30a=90°
a=90°/30 = a=30°
∠x=33° (11a)
∠y=57°(19a)
as AB║BD
Then,∠ADC=∠DCE
∠DCE=65° (32+33)

:) Hope this helps!!!

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Parallelogram and Triangles lie on the same base and between the same Parallel Lines we have equal areas show that the perimeter of the parallelogram is greater than that of rectangle

Posted by Anurag Choubey 8 years, 2 months ago

CBSE > Class 09 > Mathematics

0 answers

ANSWER

A cylinder is within the cube touching all the vertical faces. A cone is inside the cylinder. If their height are the same with the same base. Find the ratio of their volumes.

Posted by Vivek Rathore 8 years, 2 months ago

CBSE > Class 09 > Mathematics

0 answers

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give one example each of a binomial of degree 35,and of a monomial of degree 100.

Posted by Latika Baniya 8 years, 2 months ago

CBSE > Class 09 > Mathematics

1 answers

Latika Baniya 8 years, 2 months ago

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In an isosceles triangle ABC, BC is produced to point D and point D is joined to point A. How to prove that AD>AC?

Posted by Tarang Patil 8 years, 2 months ago

CBSE > Class 09 > Mathematics

0 answers

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If a=3 and b=5 find the value of a^a+b^b

Posted by Akshit Sharma 8 years, 2 months ago

CBSE > Class 09 > Mathematics

3 answers

Jeeva Dharshini 8 years, 2 months ago

27+3125=3152

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Kaviya Ramu 8 years, 2 months ago

No 27+3125= 3152

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Kaviya Ramu 8 years, 2 months ago

3^3+5^5= 27+25= 52

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A ? ABC is right angled at A L is a point on BC such that AL perpendicular BC prove that angle BAL=angleACB

Posted by Gaurav Verma 8 years, 2 months ago

CBSE > Class 09 > Mathematics

0 answers

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Give the equation of two lines passing through (2,14).how many more such lines are there and why?

Posted by Fu Ck 8 years, 2 months ago

CBSE > Class 09 > Mathematics

3 answers

Kaviya Ramu 8 years, 2 months ago

Infinite lines can pass through it Two lines can be x+y-16=0 x-y+12=0

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Dixaa Shokeen 8 years, 2 months ago

Sorry it should b 17

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Dixaa Shokeen 8 years, 2 months ago

x+y=13 Only one line can pass through two given points.

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Write a rational number which dose not lie between -2/3&-1/5

Posted by Aarohi Gupta 8 years, 2 months ago

CBSE > Class 09 > Mathematics

2 answers

Ayush Sah 8 years, 2 months ago

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Harshit Raj 8 years, 2 months ago

1Thank You

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Five rational number 5/7 and9/7

Posted by Nayan Baghel 8 years, 2 months ago

CBSE > Class 09 > Mathematics

1 answers

Sunny Rawat 8 years, 2 months ago

⅝ 5/9 6 6/1 6/8

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How many similarities are there? Name them. Good morning friends ?

Posted by Harshit Raj 8 years, 2 months ago

CBSE > Class 09 > Mathematics

0 answers

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How to construct the angle 84 half

Posted by Anurag Singh 8 years, 2 months ago

CBSE > Class 09 > Mathematics

1 answers

Apurv Gautam 8 years, 2 months ago

Not possible to construct 841/2*Ang.

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Can a triangle have more than 180 degree angle

Posted by Jagdeo Prasad 8 years, 2 months ago

CBSE > Class 09 > Mathematics

4 answers

Angle Anu? 8 years, 2 months ago

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Sunny Rawat 8 years, 2 months ago

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Apurv Gautam 8 years, 2 months ago

No chance

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A K 8 years, 2 months ago

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(Motivate) if a ray stands on a line, then the sum of the two adjacent angles so formed is 180° and the converse

Posted by Kanhaiya Gupta 8 years, 2 months ago

CBSE > Class 09 > Mathematics

0 answers

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A triangle two sides are given 30,40 find value of third angle

Posted by N Mukesh Thakur 8 years, 2 months ago

CBSE > Class 09 > Mathematics

2 answers

Aditya Kumar 8 years, 2 months ago

110°

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Ayush Kumar 8 years, 2 months ago

110

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IN THE Adjacent figure x:y = 11:19 AD parallel to BF find angle DCE?

Posted by Kajal Lanjhiyana 8 years, 2 months ago

CBSE > Class 09 > Mathematics

0 answers

ANSWER

Find the square root of 21 by long division method

Posted by Pooja Parmar 8 years, 2 months ago

CBSE > Class 09 > Mathematics

0 answers

ANSWER

If the angles if a triangle are in the ratio 5:3:7then show that the triangle is acute angled triangle.

Posted by Jatin Parjapati 8 years, 2 months ago

CBSE > Class 09 > Mathematics

1 answers

A K 8 years, 2 months ago

let ,angle(1)=5x , angle(2)=3x and angle(3)=7x So,5x+3x+7x=180 X=12 angle(1)=5×12=60 angle(2)=3×12=36 And,angle(3)=7×12=84 As,we seen that, all three angles are acute angle. So, the triangle is acute angled triangle.

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Equation

Posted by Sanjali Gupta 8 years, 2 months ago

CBSE > Class 09 > Mathematics