Question
(a)Calculate the area of triangle ABC.
……………………………….\(cm^{2}\)
(b)Calculate the length of AC.
AC=………………………cm
Answer/Explanation
(a)20.1 or 20.07 to 20.08
(b)5.86 or 5.858
Question
(a) Calculate the area of triangle PQR.
…………………………………….\(cm^2\)
(b) Triangle PQR is enlarged by scale factor 4.5 .
Calculate the area of the enlarged triangle……………………………………..\(cm^2\)
Answer/Explanation
Ans:
(a) 11.4 or 11.40 to 11.41
(b) 231 or 230.8 to 231.1
Question
Use the sine rule to find angle ABC.
Angle ABC = ……………………………………….
Answer/Explanation
19.3 or 19.26 to 19.27
Question
Calculate the area of the triangle.
cm2 [2]
Answer/Explanation
Ans:
13 45[.0] or 44.99 to 45.00
Question
(a) Find the area of triangle ABC.
……………………………………… \(m^{2}\)
(b) Calculate AC
Answer/Explanation
(a)2.24
(b) 3.22 or 3.224 to 3.225