the shadow of a 100 m long vertical pole is of 20 m then what will be the angle of inclination round the answer to the nearest tenth of a degree

54.23 m

Step-by-step explanation:I’m not sure this is even close to being right but I tried

b. an equilateral triangle inscribed in a circle

step-by-step explanation:

we are given the figure of two circles having a triangle inside.

now, we know that,

"when a figure is lying inside an another figure, then the outside figure is known as circumscribed figure and the figure lying inside is referred to as the inscribed figure".

as we see that, the circles are containing the triangle completely.

thus, the circles are the circumscribed figures and the triangle is the inscribed figure.

hence, we get, 'an equilateral triangle is inscribed in a circle'.