In the diagram ST and QR are parallel. |PS| = 6cm, |SQ| = 8cm and |PR] = 18 2/3. Find |PT|
7cm
8cm
8 2/3cm
10cm
10 2/3cm
Correct answer is B
No explanation has been provided for this answer.
Two solid spheres have volumes 250cmo and 128cmo respectively. Find the ratio of their radii.
125:64
25:16
2:1
4:3
5:4
Correct answer is E
96cm2
108cm2
135cm2
162cm2
216cm2
Correct answer is D
A = 1/2(A + B)h = 1/2(24 + 12) x 9 = 162
\( \frac{\pi x^2}{8} \)
\( \frac{3\pi x^2}{8} \)
\( \frac{5\pi x^2}{8} \)
\( \frac{3\pi x}{8} \)
Correct answer is B
A = θ 360 x πr2 = 135 360 x π x x2 = (3πx2)/8
2.3cm
4.6cm
8cm
16cm
16cm
Correct answer is B
Length of arc = \(\frac{\theta}{360} \times 2\pi r\)
= \(\frac{75}{360} \times 2 \times \frac{22}{7} \times 3.5\)
= \(4.583 cm\)
\(\approxeq\) 4.6 cm (to 2 sig. figs)
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