Current location - Education and Training Encyclopedia - Educational institution - The shape and size of the triangular ruler are shown in. If the radius of the circular hole is R and the thickness of the triangular ruler is H, what is the volume V of the triangular ruler? If a=6c
The shape and size of the triangular ruler are shown in. If the radius of the circular hole is R and the thickness of the triangular ruler is H, what is the volume V of the triangular ruler? If a=6c
The shape and size of the triangular ruler are shown in the figure. If the radius of the circular hole is R and the thickness of the triangular ruler is H, what is the volume V of the triangular ruler? If A = 6 cm, R = 0.5 cm and H = 0.2 cm, find the value of v (π takes 3).

Triangle area =a? /2

Area of circle =πr?

So V=(a? /2-πr? )h=a? h/2-πr? h

A=6 cm, r=0.5 cm, h=0.2 cm.

V=6? *0.2/2-3. 14*0.5? *0.2=3.443cm?