EASY I AM JUST DUMB HELP ASAP 10. Which statement must be true if segment EG is an altitude for the triangle DEF?

A) Segment DG is congruent to segment FG.
B) Triangle DGE is congruent to triangle FGE.
C) Triangle DEF is congruent to triangle DEG.
D) Segment EG is perpendicular to segment DF.

Could someone with number 1 and 2

The distance of a chord from the centre of a circle is 12cm and the lenght of the chord is 10cm. find the radius of the circle

Abucket of paint has spilled on a tile floor. the paint flow can be expressed with the function p(t) = 6(t), where t represents time in minutes and p represents how far the paint is spreading. the flowing paint is creating a circular pattern on the tile. the area of the pattern can be expressed as a(p) = 3.14(p)^2 part a: find the area of the circle of spilled paint as a function of time, or a[p(t)]. show your work. part b: how large is the area of spilled paint after 8 minutes? you may use 3.14 to approximate pi in this problem.