60! You just do 12x5.
The area of triangle is : 18.0
Area = 0.5*12*7 = 42 square cm
Area of a triangle = 1/2 (Base x Height) Example: Width 13cm, Height 5cm, Base 12cm then; Area=1/2(12cm x 5cm) Area=6cm x 5cm Area=30cm2
Base x Height / 2 So it's 12x8.5/2= 51
60 sq cm
The area of triangle is : 18.0
3.5
this is 5cm (:
Area = 0.5*12*7 = 42 square cm
The area is 108cm2
Area is 36cm2
Area of a triangle = 1/2 (Base x Height) Example: Width 13cm, Height 5cm, Base 12cm then; Area=1/2(12cm x 5cm) Area=6cm x 5cm Area=30cm2
Area of a triangle = 1/2 * Base * Height = 1/2 * 12 * 6.5 = 39 cm2
Base x Height / 2 So it's 12x8.5/2= 51
=48
60 sq cm
The formula to calculate the area of a triangle is 1/2 * base * height. To understand this, think of a rectangle or a square. To calculate the area of this object you would use length * width (which is the same as base * height). If you cut this object in half, you get a triangle. So that area of any triangle is 1/2 * base * height. I cannot answer your question because you are missing the triangle's height but you should be able to use the formula above to calculate the answer on your own.