Finding the Surface Area of a Triangular Prism Ch
13 cm
2 cm
Which equation could be used to find the surface area
of the net of the triangular prism shown?
O SA = (1/2)(5)(12) + (5)(2) + (12)(2) + (13)(2)
O SA = (1/2) (5)(13) + (1/2) (5)(13) + (5)(2) + (13)(2)
+ (12)(2)
SA = (1/2)(5)(12) + (1/2)(5)(12) + (5)(2) + (12)(2) +
(13)(2)
SA = (2)(5)(13) + (5)(2) + (13)(2) + (12)(2)
12 cm
5 cm
5 cm
Intro
Done
8 of 12

How to do this , and can some one explain

Kayla wants to find the width, ab, of a river. she walks along the edge of the river 65 ft and marks point c. then she walks 25 ft further and marks point d. she turns 90° and walks until her location, point a, and point c are collinear. she marks point e at this location, as shown. (a) can kayla conclude that δ and δ are similar? why or why not? (b) suppose de = 15 ft. what can kayla conclude about the width of the river?

Gh bisects fgi. find the measure of hgi •15° •21° •10° •8°