Question

Find PR, if the area of a triangle PQR is 36cm² and the height QS is 3cm ?
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Answer 1

Answer:

QR=24

Height =3cm

Area=36cm

Area of a triangle PQR= 1/2 bh

36=1/2×b×3

b=36×2/3=24

So,BC=24cm.

Answer 2

Answer:

24 cm²

Step by step Explanation:

Given: Area of Triangle= 36 m²(=1/2*b*h)

Height= 3 cm

To Find: base= PQ = ?(let b)

Solution:

putting the given values in area of triangle

$\frac{1}{2} \times b \times h = 36$

$\frac{1}{2} \times b \times 3 = 36$

$b = \frac{36}{3} \times 2$B= 12 × 2

B= 24 cm

So the breadth of the triangle(PQ)= 24 cm

No need to write the things mentioned below

To check whether our answer is correct or not:

1/2 × 24 × 3 = 36

12 × 3 = 36

36 = 36

L.H.S = R.H.S

hence verified

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