Question

find altitude of equilateral triangle whose side is 20 cm. With exclamation ​

Answer 1

Answer:

17.3cm

Step-by-step explanation:

(h)^2 = (p)^2 + (b)^2

(20)^2 = (p)^2 + (10)^2

400 = (p)^2 + 100

400 - 100 = (p)^2

300 = (p)^2

17.3 = p

so the altitude of the equilateral triangle will be 17.3cm .

Answer 2

Given - Side of equilateral triangle = 20 centimetres.

Find - Altitude of the equilateral triangle with given dimensions.

Solution - Altitude of equilateral triangle can be calculated by the help of formula 1/2 * ✓3 * side.

Keeping the values in formula, we get altitude.

Altitude = 1/2*✓3*20

Altitude = 1/2*34.64

Altitude = 17.3 centimetres.

Thus, altitude of equilateral triangle with given side is 17.3 centimetres.