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You'll have to work out the length of the third side using:
a) the sine rule (if information given has one side opposite a given angle and the unknown side also opposite a given angle)
SIN RULE: sinA/a = sinB/b = sinC/c
b) the cos rule (not opposite).
COSINE RULE: a2 = b2 +c2 -2bc x CosA
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What is the perimeter of a triangle whose sides measure 10 cm 15 cm and 18 cm?
Perimeter of a triangle is given by: sum of the three sides =(10+15+18)cm =43cm Done.
What is the perimeter of an equilateral triangle whose sides measures 8.5 meters?
An Equilateral Triangle has 3 equal sides so 3 X 8.5m = 25.5m
How to find the perimeter of an eQuilateral triangle whose sides measure 5 cm?
The figure is a triangle. That means it has 3 sides. The triangle is "equilateral". That means all three sides have the same length. One side is 5 cm. That means each of the other 2 sides is also 5 cm. So the perimeter is (5 + 5 + 5) = 15 cm.
What is the irregular shape with the perimeter of 36cm?
It could be any irregular shape whose sides add up to 36cm as for example a scalene triangle
What is the perimeter of a square whose sides are 12.4inches?
49.6
