2. Solve the missing side length.
C²=a²+b²
C²=5cm²+12cm²
C²=25cm²+144cm²
C²=169cm²
√c²=√169cm²
C²=13
13cm
3. Is this a right triangle? Prove it.
First label the sides for example
a²+b²=c²
8cm²+6cm²=11cm²
(8x8)+(6x6)=(11x11)
64cm²+36cm²=121cm²
100cm²≠121cm²
4. a) 10
Kai uses an entire can of paint on a square backdrop for the school play. The label on the can states that one can cover 27 cm² of the wall surface. Estimate the backdrop's side lenth to one decimal place.
ANSWER: 5.2
EXPLANATION: The square root of 27cm is 5.196152423 and when you make it into the closest decimal place it is 5.2.
b) 9
Identify all possible whole numbers that have a square root between 4 and 5.
ANSWER: 17,18,19,20,21,22,23,24.
EXPLANATION:All the square roots of each number equal a number between 4 and 5.
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