Length of CA = 6x - 30
Length of AT = 2x + 30
We know that all sides of a rhombus are congruent.
Which means :
![= 6x - 30 = 2x + 30](https://img.qammunity.org/2022/formulas/mathematics/high-school/3hg9ssys6f16cbhy8mjfqcl961logevk5i.png)
![= 6x - 30 - 2x = 30](https://img.qammunity.org/2022/formulas/mathematics/high-school/7qcq216mk126a8wceq4awhw3e98t5gqj5h.png)
![= 4x - 30 = 30](https://img.qammunity.org/2022/formulas/mathematics/high-school/vlg07v4j939awo9zbjcl76qrjrnm9e1lq8.png)
![= 4x = 30 + 30](https://img.qammunity.org/2022/formulas/mathematics/high-school/7ukk8x2wam3dvhmtdxqcyg9omalb63lolp.png)
![= 4x = 60](https://img.qammunity.org/2022/formulas/mathematics/high-school/x3juh0bryrmer4oikrhv4u2ui6fqpc9g5p.png)
![= x = (60)/(4)](https://img.qammunity.org/2022/formulas/mathematics/high-school/talizdwngsvkbzriv1u8pqc7bcos6a4wvp.png)
![= x = 15](https://img.qammunity.org/2022/formulas/mathematics/high-school/aqr0ucvlmspoorp75jbn90xkmzk422kvhu.png)
Thus, the value of x = 15
Then :
Measure of CA :
![= 6x - 30](https://img.qammunity.org/2022/formulas/mathematics/high-school/yfioyn4hihxon7ldbdyrtx5z8cejv11hry.png)
![= 6 * 15 - 30](https://img.qammunity.org/2022/formulas/mathematics/high-school/b3eprpt18eh5tz2t1i0v6ax8rutop444bb.png)
![= 90 - 30](https://img.qammunity.org/2022/formulas/mathematics/high-school/fdnrzgi7zkbfm2kxzo7i3hzejvcut9bvv7.png)
![= 60](https://img.qammunity.org/2022/formulas/advanced-placement-ap/high-school/imnoq9pw3w0veavpk43rb69xg4gf0uapoq.png)
Thus, measure of CA = 60
Measure of AT :
![= 2x + 30](https://img.qammunity.org/2022/formulas/mathematics/high-school/x83lvy7t2smsgocvdl557p6cnq6y0n0s66.png)
![= 2 * 15 + 30](https://img.qammunity.org/2022/formulas/mathematics/high-school/8q0ycqa61lnyoop8q0q0nbik3vqsxfxbbt.png)
![= 30 + 30](https://img.qammunity.org/2022/formulas/mathematics/high-school/gggb8zrq4aeuvsgmb6ns9c9sp2jdc4a4pz.png)
![= 60](https://img.qammunity.org/2022/formulas/advanced-placement-ap/high-school/imnoq9pw3w0veavpk43rb69xg4gf0uapoq.png)
Thus, measure of AT = 60
Perimefer of rhombus CAT :
![= 4 * side](https://img.qammunity.org/2022/formulas/mathematics/high-school/38xe24bfoer2p299t9czoht1petgkxgx3j.png)
![= 4 * 60](https://img.qammunity.org/2022/formulas/mathematics/high-school/vdlsco6dn8r3ph2y2ruc00azc61a1rtabm.png)
![= \color{plum}240](https://img.qammunity.org/2022/formulas/mathematics/high-school/lydw447sdjjxvthjug6zt0pa6hldwpp72y.png)
Therefore, the perimeter of rhombus CAT = 240