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Question
Find the area of rhombus ABCD in which AB = 6 cm and ∠ABC = 60°.
Sum
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Solution
Given:
Rhombus ABCD
Side AB = 6 cm
Angle ∠ABC = 60∘
Area = side2 × sin(θ)
Step 1: Plug the values into the formula
Area = 62 × sin(60°)
= 36 × `sqrt3/2`
= `18sqrt3 "cm"^2`
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Chapter 20: Simple 2-D Problems in Right Triangle - EXERCISE 20 [Page 243]
