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To find the area of a triangle, use the following formula:

A = 1/2 ( b * h )

whereas, variable b = base and h = height.

A = 1/2 ( 18 * 20 )

A = 1/2 ( 360 )

A = 180 m3

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Q: What is area of triangle with base of 18m and height of 20m?

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To get the area you multiply the length and the width. Doing the math gives an answer of 108 square meters.

the diameter of a circle with the radius of 9m is 18m

A girl 1.2 m in height is 25 m away from a tower 18 m high. What value is the angle of elevation of the top of the tower from her eyes?

Rectangles are really simple. The perimeter is twice the length plus twice the width (in this case 4m x 2 = 8m, 5m x 2 = 10m, and 8m + 10m = 18m). The area is simply the length times the width (in this case, 4m x 5m = 20m2).

-- The area of each little square is 1 square meter. -- The area of the big square is 9 square meters. -- So 9 little ones will cover the big one. Note: If the big one wasn't in the shape of a 3m x 3m square or a 1m x 9m rectangle, then you might have to cut up some of the little ones to make them fit the shape, but even so, 9 of them would exactly cover the bigger shape.

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Area_of_triangle = base x height / 2 area = 18m x 20m / 2 = 180m2

The formula for the area of a triangle is A = 1/2b x h. A = 1/2*18m*20m = 180 m2

Area of traingle = Base * Height / 2 = 18*12/2 = 108 m2

The formula for the area of a triangle is, A = 1/2b x h, where b is base and h is height. A = 1/2(18m) x 20m = 180m2 Another way to write the formula for the area of a triangle is A = (b x h)/2, which gives the same answer. A = (18m x 20m)/2 = 180m2

The formula for the area of a triangle is, A = 1/2b x h, where b is base and h is height. A = 1/2(18m) x 20m = 180m2 Another way to write the formula for the area of a triangle is A = (b x h)/2, which gives the same answer. A = (18m x 20m)/2 = 180m2

It is: 0.5*18*20 = 180 square m

18 * 2 = 36 / 2 = 18 m2

The question cannot be answered because there is an error in the information provided. If the base of a rectangle is 18m, and the side is 20 m, then the area cannot be 108m. (It cannot be any number of metres since area must be measured in square metres, but that is another matter)

If C=18m then A = 25.783m2

216 square meters.

20*18 = 360 square meters (m2).

No

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