Which of the following groups of measurements will form a triangle? a 3 in., 10 in., 15 in.
b 5 in., 7 in., 10 in.
c 2 in., 15 in., 20 in.
d 3.5 in., 3.5 in., 7 in.

non of the above

in a 3² + 10²=109 which is not the square of 15in

b 5² + 7²=74 which is not the square of  10 in

c2² + 15²=229 which is not the square of 20 in

d 3.5² + 3.5²=24.50 which is not the square of 7

Step-by-step explanation:

solution:

→c= a b , that is product of a and b is possible only when when a is m × n matrix and b is n × p matrix.

that is, number of columns of a= number of rows of b.

so, size of matrix , c= a b is , if a = (m × n)matrix

b= (n × p)matrix

then a b = [ (m × n)matrix] ×[   (n × p)matrix ]

→→c= a b= [m × p ] matrix

→→size of product a b will be equal to = number of rows of a × number of columns of b

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step-by-step explanation: