Question

answer the third question with step by steps method​

Answer 1

Answer:

simple

Step-by-step explanation:

15 + 8

23

the sum of a triangle is 180°

then

180 - 23

157

this is your answer

hope it's help

Answer 2

$\huge \orange { \boxed{ \underline{Solution}}}$

$1) \: base \: = 4cm \\ perpendicular = 3cm \\ hypotenuse \: = ? \\ (h) {}^{2} = (b) {}^{2} + (p) {}^{2} \\ (h) {}^{2} = 3 {}^{2} + 4 { }^{2} \\ (h) {}^{2} = 9 + 16 \\ (h) {}^{2} = 25 \\ h = \sqrt{25 } \\ h = 5cm \\ 2) \: base \: = 8cm \\ perpendicular = 6cm \\ hypotenues \: = {?} \\ (h) {}^{2} = (b) {}^{2} + (p) {}^{2} \\ (h) {}^{2} = 8 { }^{2} + 6 {}^{2} \\ (h) {}^{2} = 64 + 36 \\ (h) {}^{2} = 100 \\ h = \sqrt{100 } \\ h = 10cm$