Answer:
(a) AD=6 cm
(b) 66 cm²
(c) 38 cm
Step-by-step explanation:
(a) To get the length of AD, we can use pythagoras on the triangle part. Let's say the dotted line intersects DC at E. Then since AB and DC are parallel, AD is equal to BE. EC = 8 cm simply by subtracting AB from DC (15-7=8).
Then pythagoras says that 8²+BC²=10². So BC = √(100-64) = 6. And since BC=AD, AD is also 6.
(b) Area of the rectangle DEBA is 7*6 = 42. Area of triangle ECB is base times half height: 8*3 = 24. Sum is 42+24 = 66 cm²
(c) Perimeter is 7+10+15+6 = 38 cm. Add all the side lengths.
Answer:
Answer: 2.5
Step-by-step explanation:
It seems as if everything is divided by two so 5/2 is 2.5
Answer:
multiply by 5, t = 14.5
Step-by-step explanation:
t/5 = 2.9 (multiply each side by 5)
t = 14.5
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▹ Answer
<em>$1.30</em>
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▹ Step-by-Step Explanation
To find the price per pound, you have to divide the total amount of money by the amount of pounds:
$7.80/6 lbs = $1.30
Hope this helps!
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