Question
The area of a triangle is 216 cm² and the ratio of its
sides is 9: 12: 15. What is the perimeter of the triangle?Solution
Given ratio of sides, form a triplet of a right-angle triangle.  =1/2 × 9x × 12x = 21 54x2 =216  x² = 4  x = 2 Perimeter = (9 + 12 + 15) × 2 = 72 cm.
More Triangle Questions
150% of 850 ÷ 25 – 25 = ?% of (39312 ÷ 1512)
2850 ÷ 2.5 - ? × 42 = 300
[(√576 × √144) ÷ √1296]2 = ? ÷ 3
What will come in the place of question mark (?) in the given expression?
?% of 192 = 242 – 48 × 11
Simplify the following expression and find the final value:
(18 ÷ 6 of 2 + 7 of 5) ÷ 5
5.5 × 3.2 × 2.3 = ?
2850 ÷ 2.5 - ? × 42 = 300
What will come in place of the question mark (?) in the following questions?
180 % of 45 + √144 × 8 = ?2  + 80 % of 70
(7/4×18/21)+ (51/7× 28/17) + (25/2 × 48/10) =?
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