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Number System

Quick practice

Question 1 of 5

A triangle having sides 5cm ,12cm and 13cm. The area of triangle is:

A

$40 \mathrm{cm}^{2}$

B

$10 \mathrm{cm}^{2}$

C

$30 \mathrm{cm}^{2}$

D

$20 \mathrm{cm}^{2}$