Maths-

General

Easy

Question

# Find area of triangles

a. Whose height is 5cm and base is 10cm

b. Whose three sides are a = 5 cm, b = 5 cm and c = 8 cm

Hint:

### In (a) simple use Area of triangle = and in (b) isosceles triangle is given.

## The correct answer is: a) 25 cm2 , b) 12 cm2

### (a) It is given that base, b = 5 cm and height, h = 10 cm

Area of triangle = = 25 cm^{2}

(b) It is given that a = 5 cm , b = 5 cm and c = 8 cm

Now, using Heron’s formula

Area of triangle = where s =

s = = 9

Area of triangle =

=

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