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Class 7 Mathematics area of varied shapes questions and answers

Triangle RST below is an isosceles triangle. The length RT=RS=10cm and ST=12cm.

What is the area of the triangle?
A. 32 $cm^2$
B. 48 $cm^2$
C. 24 $cm^2$
D. 60 $cm^2$

(6m 41s)

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