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Area of a Triangle

In triangle P...

Question

In triangle PQR, PR = 8 cm, QR = 8 cm and PL = 5 cm. Find the area of triangle PQR.

A

5

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B

10

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C

15

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D

20

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Solution

The correct option is D
20

QR = base = 8 cm, PL = height = 5 cm

Area of the triangle PQR = $\frac{1}{2} \times b a s e \times h e i g h t = \frac{1}{2} \times 8 \times 5 = 20 c m^{2}$

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Similar questions

In triangle PQR, PR = 8 cm, QR = 8 cm and PL = 5 cm. Find the area of triangle PQR.

Q. In Figure 4, a circle is inscribed in a triangle PQR with PQ = 10 cm, QR = 8 cm and PR = 12 cm. Find the lengths QM, RN and PL.

△ A B C

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A B = 2.5 c m, A C = 3.5 c m, B C = 4.0 c m, P Q = 5 c m, P R = 7 c m

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, then find whether

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∠ P Q R = 45^{\circ}

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Area of a Triangle

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