QUESTION 1 d

QUESTION 1

QUESTION 2 rectangle

QUESTION 2 rectangle

QUESTION 3

QUESTION 3

QUESTION 4

QUESTION 5 8.94 m 6.93 m 7.48 m 4.00 m 48.00 m An equilateral triangle has a sidelength of 8 metres. What is the height of the triangle?

QUESTION 6

QUESTION 6

QUESTION 7

QUESTION 7

QUESTION 8

QUESTION 8

QUESTION 9

QUESTION 10

ANSWERS QUESTIONS 1, 2 and 3 are on Edrolo

𝒄= 𝟖𝟗 ≈𝟗.𝟒𝟑 𝒄 𝟐 =𝒂 𝟐 + 𝒃 𝟐 a b c 𝒄 𝟐 = 𝟓 𝟐 + 𝟖 𝟐 𝒄 𝟐 =𝟖𝟗 Question 4 5 miles a b 𝒄 𝟐 =𝒂 𝟐 + 𝒃 𝟐 8 miles c 𝒄 𝟐 = 𝟓 𝟐 + 𝟖 𝟐 𝒄 𝟐 =𝟖𝟗 𝒄= 𝟖𝟗 ≈𝟗.𝟒𝟑

𝟖 𝟐 = 𝟒 𝟐 + 𝒉 𝟐 𝟖 𝟐 − 𝟒 𝟐 = 𝒉 𝟐 𝒉= 𝟖 𝟐 − 𝟒 𝟐 𝒉≈𝟔.𝟗𝟑 h Question 5 8 m 𝒉= 𝟖 𝟐 − 𝟒 𝟐 𝒉≈𝟔.𝟗𝟑 4 m

ANSWERS for Q6, Q7, Q8 are on EDROLO

3 4 = 𝑥 24 𝒙= 𝟑 𝟒 ×𝟐𝟒=𝟏𝟖 C QUESTION 9 24 cm B A 36 cm E x B D 27 cm The small triangle is the image(copy) because it has the x we want. 𝟐𝟕 𝟑𝟔 = 𝒙 𝟐𝟒 NOTE: Scale factor is 𝒌= 𝟐𝟕 𝟑𝟔 =𝟎.𝟕𝟓 3 4 = 𝑥 24 𝒙= 𝟑 𝟒 ×𝟐𝟒=𝟏𝟖

so 𝒙=𝟐𝟎×𝟎.𝟔=𝟏𝟐 𝒙 𝟐𝟎 = 𝟐𝟒 𝟒𝟎 𝒙 𝟐𝟎 =𝟎.𝟔 A 20 cm x cm 𝜃 B D 24 cm A 20 cm