Answer:
56.55cm³
Step-by-step explanation:
Base radius: r = 7 m
Height: h = 11 m
Given that there is an equilateral triangle.
We know that equilateral triangle has all sides equal.
Perimeter = sum of all sides
P = s+s+s = 3s
P = 3s is the equaiton where P = perimeter and s = side of the triangle.
In geometry, an equilateral triangle is a triangle in which all three sides and angles are equal. ; that is, all three internal angles are also congruent to each other and hene have to be each 60°. It is also a regular polygon, with three sides and so sometimes also referred to as a regular triangle.
Answer:
A
Step-by-step explanation:
Using the sine ratio in the right triangle and the exact value
sin30° = 
, then
sin30° = 
= 
= ( cross- multiply )
2x = 8 ( divide both sides by 2 )
x = 4
Answer:
A
Step-by-step explanation:
