Haraya owns two triangular plots of land, ABC and ACD. The length of AB is 30 m, BC is 50 m and AC Is 70 m. The size of DAC is 55° and ADC is 72'.
The following diagram shows this information.

1a: Find the length of AD.
1b: Find the size of ABC.
1c: Calculate the area of the triangular plot of land ABC.

Juliana says that she can use the patterns of equivalent ratios in the multiplication table below to write an infinite number of ratios that are equivalent to 6: 10. which statement explains whether juliana is correct? she is correct because she can multiply 6 and 10 by any number to form an equivalent ratio. she is correct because 6: 10 can be written as 1: 2 and there are an infinite number of ratios for 1: 2. she is not correct because the multiplication table does not include multiples of 10. she is not correct because 6: 10 is equivalent to 3: 5 and there are only 9 ratios in the multiplication table that are equivalent to 3: 5.