Question

Chapter 16
1. If the length and diagonal of a rectangle are 35 m and 37 m, then its area is
a. 444 m2
b. 420 m
c. 240 m
d. 400 m²​

Answer 1

Answer:

420m^2

Step-by-step explanation:

by using Pythagorean theorem,we find breadth of rectangle

such that,

(37)^2-(35)^2= b

b=12m

area of rectangle=l*b

35*12

420m^2

Answer 2

Step-by-step explanation:

Given :

Length of rectangle =35m

Diagonal of rectangle=37m

To find:

Area of rectangle

Solution :

A= l √ (d square -l square) sq. Units

Where

A is the area of rectangle

L is the length of the rectangle

D is the the diagonal of the rectangle.

Let us substitute the values in the above formula

A=35√(1369-1225)

A= 35√144

A=35*12 since √144=12

Area = 420 sq. m

Area of rectangle is 420 sq. m

Hope this helps u ✌