An equilateral triangle with the measure of its side is 6 cm. The area of the triangle is \(\sqrt{m}\) \(cm^2\). Find m

an equilateral triangle of side 12 has its conrner cut off to form a regular hexagon

a) what is the area of the corner cut off?

b) find the are of the 

Given a square with the length of one side is 8 cm and a isosceles triangle with the length of its base is 12 cm. If the area of the square is equal to the area of the isosceles triangle then what is the length of the height of the isosceles triangle, in cm? 

The sides of a triangle are a, b and c respectively. What is the perimeter of the triangle if a = 5cm, b = 4cm, and c = 3cm? Answer: The perimeter of the triangle is cm.

Given a square with the length of one side is 8cm and an isosceles triangle with the length of its base is 12 cm . If the area of the square equal of the area of the isosceles triangle then is the length of height of the isosceles triangle ?

M.n ơi kb vs mk nha ! Mk là thành viên ms nên chưa có bn !

Girl 2k5 -FA

three lines dissect a big triangle into four triangles and three quadrilaterals. the sum of the perimeters of the three quadrilateral is 25 cm, the sum of the perimeters of the four triangle is 20 cm. the perimeter of the big triangle is 19 cm. how big is the sum of the lengths of the three dissecting lines?

Give an equilateral triangle with each side 9cm. Find the area of this triangle.

 Observe the triangle on the right. The perimeter of the triangle is 68.5 cm. Find the area of this triangle.

The lengths in cm of three sides of a triangle are three consecutive odd numbers. Knowing that the perimeter of the triangle is 39cm, find the length of the longest side of the triangle. Show your work.