CBSE > Class 09 > Mathematics | CBSE Board | Homework Help

Given: ABCD is a cyclic quadrilateral To Prove: ABCD is a rectangle Proof: angle A = angle c (parallelogram) angle A + angle C = 180° (opposite sides of a cyclic parallelogram is supplementary) 2 angle A =180° angle A = 90° One side of the parallelogram is 90° Therefore ABCD is a rectangle

0Thank You

Akshith Konchada 5 years ago

In a cyclic IIgm opp angles are supplementary. But opp angles are equal in a IIgm. So x+x=180. x=90 In a IIgm if an angle is 90 then it is a rectangle.

0Thank You

ANSWER

If O is the centre of the circle , find the value of x in the given figure .

Posted by Manya Behl 5 years ago

CBSE > Class 09 > Mathematics

1 answers

Manya Behl 5 years ago

The ques. Is of class 9 sample paper 1 of mathematics ques. 13 plz check and answer me ....

7Thank You

ANSWER

Bcc

Posted by Harshal Kumbhar 5 years ago

CBSE > Class 09 > Mathematics

0 answers

ANSWER

Two parallel chords of lengths 48cm and 14cm are drawn in a circle of radius 25cm. Find the distance between the chords if they lie on a)opposite sides of the centre b)the same side of the centre

Posted by Nishita Shah 5 years ago

CBSE > Class 09 > Mathematics

0 answers

ANSWER

X×y

Posted by Subin Xavier 5 years ago

CBSE > Class 09 > Mathematics

3 answers

ᵐⁱˢˢ Lucid Dream 5 years ago

Bruhh it's really interesting question!! Sorry I don't answer of this!

0Thank You

Neha Kandpal 5 years ago

0Thank You

Pratik Kumar 5 years ago

0Thank You

ANSWER

Find the fraction which when multiplied 3/4 gives 66/7

Posted by Teddy Covers 5 years ago

CBSE > Class 09 > Mathematics

1 answers

Ankit Raj 5 years ago

99/14

0Thank You

ANSWER

Class IX today. CBAC test papaer

Posted by Alrod Gaming 5 years ago

CBSE > Class 09 > Mathematics

0 answers

ANSWER

There is a slide in a park .one of its side walls has been painted in some colour with a message "keep the park green and clean " if the sides of the wall are 15m ,11m and 6m ,find the area painted in colour

Posted by Purva Ramani 5 years ago

CBSE > Class 09 > Mathematics

1 answers

Neha Kandpal 5 years ago

By using heron's formula Side of walls a=15m,b=11m and c=6m Semiperimeter(s) = a+b+c/2 = 15+11+6/2 =16 Area of triangle = whole root s(s-a)(s-b)(s-c) W.r. 16(16-15)(16-11)(16-6) W.r. 16*1*5*10 W.r.(4*4)*1*(5*5)*2 W.r. will cancel by squares of 4,5 Now, 4*5 w.r. 1*2 = 20 w.r. 2. (w.r.=whole root) 20 whole root 2

0Thank You

ANSWER

If X square + 1 upon x square is equal to 66 find the value of x minus one upon x

Posted by K D 5 years ago

CBSE > Class 09 > Mathematics

2 answers

N T 5 years ago

-66

1Thank You

Satyam Pratap Singh 5 years ago

-66

0Thank You

ANSWER

A patient in a hospital is given soup daily in a cylindrical bowl of diameter 7 cm. If the bowl is filled with soup to a height of 4 cm, how much soup the hospital has to prepare daily to serve 250 patients?

Posted by Gouri Raikar 5 years ago

CBSE > Class 09 > Mathematics

1 answers

Prajakta Karmude 5 years ago

Radius = 7/2 =3.5cm, height of bowl =4cm (soup land) Volume of soup =πr ^2h =22/7 ×3.5×3.5×4 =154cm ^3 Volume of soup given to 250 patients =250×154 =38500cm ^3 =38500/1000 liter =38.5l

3Thank You

ANSWER

If the polynomial x²+4x²+3x-4 &x³-4x+a leave the same remainder when divided by (x-3), then find the value of ‘-a’.

Posted by Moksh Yadav 5 years ago

CBSE > Class 09 > Mathematics