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
Perimeter of a triangle is given by: sum of the three sides =(10+15+18)cm =43cm Done.
An Equilateral Triangle has 3 equal sides so 3 X 8.5m = 25.5m
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.
It could be any irregular shape whose sides add up to 36cm as for example a scalene triangle
The perimeter of an equilateral triangle is found by multiplying the length of one side by 3, since all three sides are equal in length. In this case, with a side length of 7.5 cm, the perimeter would be 7.5 cm x 3 = 22.5 cm.
is the perimeter of the triangle whose sides measure 7.5 7.1 and 8.1
Perimeter of a triangle is given by: sum of the three sides =(10+15+18)cm =43cm Done.
One can't. The angle between those is needed.
22cm
28.5
22.5 cm
The perimeter is 22.5 centimeters.
An Equilateral Triangle has 3 equal sides so 3 X 8.5m = 25.5m
To find the perimeter of a triangle, you simply add the lengths of all three sides together. In this case, the perimeter would be 15 cm + 17 cm + 10 cm = 42 cm. So, the perimeter of the triangle with sides measuring 15 cm, 17 cm, and 10 cm is 42 cm.
6+8+10=24The perimeter of the triangle is 24 inchesThe perimeter is all the side lengths added up, so that triangle would have a perimeter of 24 inches.6+8+10=24 inches
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.
It could be any irregular shape whose sides add up to 36cm as for example a scalene triangle