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Question Number 216515 by Jubr last updated on 09/Feb/25

	Answered by Jubr last updated on 09/Feb/25

	Commented by Jubr last updated on 09/Feb/25

	$F i n d t h e s u r f a c e a r e a o f t h e f i g u r e .$ $A l l u n i t s a r e i n c m .$
	Commented by Rasheed.Sindhi last updated on 09/Feb/25

	$B o t t o m : 20 \times 5 = 100$ $T o p : 20 \times 2 = 40$ $F r o n t :$ $l e n g t h 20, w i d t h \sqrt{3^{2} + 6^{2}} = 3 \sqrt{5}$ $a r e a = 20 \times 3 \sqrt{5} = 60 \sqrt{5}$ $R e a r : 20 \times 6 = 120$ $S i d e s :$ $(6 \times 2 + \frac{3 \times 6}{2}) \times 2 = 42$ $T o t a l s u r f a c e a r e a$ $= B o t t o + T o p + F r o n t + R e a r + S i d e s$ $= 100 + 40 + 60 \sqrt{5} + 120 + 42$ $= 302 + 60 \sqrt{5}$
	Commented by Jubr last updated on 10/Feb/25

	$T h a n k s s i r$
	Answered by mr W last updated on 09/Feb/25

	$b a s e a r e a = \frac{(2 + 5) \times 6}{2} = 21 {c m}^{2}$ $b a s e p e r i m e t e r = 2 + 6 + 5 + \sqrt{3^{2} + 6^{2}}$ $= 13 + 3 \sqrt{5} c m$ $h e i g h t = 20 c m$ $s u r f a c e a r e a$ $= 2 \times 21 + (13 + 3 \sqrt{5}) \times 20$ $= 302 + 60 \sqrt{5} \approx 436.16 {c m}^{2}$
	Commented by Jubr last updated on 10/Feb/25

	$T h a n k s s i r .$
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