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Question

Assertion: Area of an equilateral triangle having each side equal to 4 cm is 43 sq cm.
Reason: Area of an equilateral triangle having each side a is 34a2 sq units.
(a) Both Assertion and Reason are true and Reason is a correct explanation of Assertion.
(b) Both Assertion and Reason are true but Reason is not a correct explanation of Assertion.
(c) Assertion is true and Reason is false.
(d) Assertion is false and Reason is true.

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Solution

(a) Both Assertion and Reason are true and Reason is a correct explanation of Assertion.

Assertion:
Area of equilateral triangle = 34×(Side)2=34×(4)2=34×16=43 cm2
Reason: Area of an equilateral triangle having each side a is 34a2 sq. units.
Hence, it is true.

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