Answer:
1 ) ABC 2) DE || BC
Step-by-step explanation:
1 ) You have to show that angle ACB and angle ABC is equal.
2 ) You have to state that DE || BC.
Step-by-step explanation:
it's explained in the solution
(2/5)k + (1/10)k = (1/2)k - 1
0.4k + 0.1k = 0.5k - 1
We need to solve for k.
Subtract 0.4k from both sides
0.4k - 0.4k + 0.1k = 0.5k - 0.4k - 1
0.1k = 0.1k - 1
Subtract 0.1k from both sides:
0.1k - 0.1k = 0.1k - 0.1k - 1
0 = -1
Impossible. The equation has no solution.
The perimeter of the square would be 56 cm
For multiplying fractions keep the fractions the way they are then times both numerators together then the denominators which should make a fraction then you usually simplify.