A) 12 cm
B) 24 cm
C) 18 cm
D) 36 cm
Correct Answer: B
Solution :
Area of square \[={{(12)}^{2}}=144\,c{{m}^{2}}\] Area of triangle \[\text{=}\frac{\text{1}}{\text{2}}\text{ }\!\!\times\!\!\text{ base }\!\!\times\!\!\text{ height}\] \[\text{=}\frac{\text{1}}{\text{2}}\text{ }\!\!\times\!\!\text{ 12 }\!\!\times\!\!\text{ height}\] \[\text{=}\frac{\text{1}}{\text{2}}\text{ }\!\!\times\!\!\text{ 12 }\!\!\times\!\!\text{ height=144}\] \[\Rightarrow \] \[\text{height=}\frac{\text{144}\times \text{2}}{12}\] \[\Rightarrow \] \[24\,cm\]
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